The guys who started the modernist cuisine have got their own YouTube channel, titled chefsteps, not my cup of tea but someone linked these videos, their take on knives and how to sharpen.
https://www.youtube.com/watch?v=YS_kItQI98c
https://www.youtube.com/watch?v=NO3nmZevZiI
https://www.youtube.com/watch?v=mtAU51AEzho
https://www.youtube.com/watch?v=PXMYoOp4IZw
https://www.youtube.com/watch?v=4rcjcWB5Ric
https://www.youtube.com/watch?v=yXu4hZN8pJE
https://www.youtube.com/watch?v=hXCBAFxlj4k
https://www.youtube.com/watch?v=YS_kItQI98c
https://www.youtube.com/watch?v=NO3nmZevZiI
https://www.youtube.com/watch?v=mtAU51AEzho
https://www.youtube.com/watch?v=PXMYoOp4IZw
https://www.youtube.com/watch?v=4rcjcWB5Ric
https://www.youtube.com/watch?v=yXu4hZN8pJE
https://www.youtube.com/watch?v=hXCBAFxlj4k